| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Full in 1 semester | 1 | 
                                                                 
                                    
                                    50%
                                 
                                                             | 
                                                        
                    
| 3 | 3. Less than 1 semester | 1 | 
                                                                 
                                    
                                    50%
                                 
                                                             | 
                                                        
                    
| 9 | 9. Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3083 |